BP/W setup - Galvanic corrosion and how to avoid it

[Centrals]

How difficult it is to remove the STA after diving?

 

[happy-diver]

but it's not underpants and completely unnecessary

 

[Mr. Sunday]

Hi divers.

I am in the process of building an aluminium Backplate rig with a primary use of travel diving. I have found an aluminium backplate and single tank adapter, but I'm having trouble finding a compatible bolt to attach the two together that won't cause Galvanic corrosion. Any ideas?
....Open to the idea of buying different items to avoid this problem

Titanium bolts with Delrin nuts might work for your needs.

 

[Daniel M. Thomas]

They look pretty cool, where do you get them from? I think titanium would react with aluminium also in the same way though.

 

[KenGordon]

I have just today purchased a new aluminum backplate from Dirdirect, funny you should mention it!

Internet shopping has reduced the number of places you can go and see this stuff in the flesh.

 

[Diver below 83]

View attachment 543598


Titanium bolts with Delrin nuts might work for your needs.

Love them

 

[tarponchik]

View attachment 543598


Titanium bolts with Delrin nuts might work for your needs.

In case of galvanic corrosion in the Al-Fe and Al-Ti pairs, it is the aluminum that gets corroded, not the steel or titanium.

 

[Daniel M. Thomas]

Love them

Where do you get them

 

[Diver below 83]

Where do you get them

I’m wondering the same

 

[Mr. Sunday]

Where do you get them

Helium Dive